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Professional JavaScript for Web Developers (Wrox Professional Guides)

von Wiley John + Sons / Wiley, John, & Sons, Inc
Preisvergleich Produktbild Professional JavaScript for Web Developers (Wrox Professional Guides)
Wiley John + Sons / Wiley, John, & Sons, Inc
JavaScript is loosely based on Java, which is an object-oriented programming language that became popular for use on the Web by way of embedded applets. It has a similar syntax and programming methodology to Java, however, it should not be considered the "light" version of the language. JavaScript is its own language that found its home in web browsers around the world and enabled enhanced user interaction on websites as well as web applications. In this book JavaScript is covered from its beginning in the earliest Netscape browsers to the present-day versions that can support the DOM and Ajax. You will learn how to extend the language to suit specific needs and how to create client-server communications without intermediaries such as Java or hidden frames. You will also learn how to apply JavaScript solutions to business problems faced by web developers everywhere. This book provides a developer-level introduction along with more advanced and useful features of JavaScript. The book begins by exploring how JavaScript originated and evolved into what it is today.There is a discussion of the components that make up a JavaScript implementation that follows that has a specific focus on standards such as ECMAScript and the Document Object Model (DOM). The differences in JavaScript implementations used in different popular web browsers are also discussed. After building a strong base, the book goes on to cover basic concepts of JavaScript including its version of object-oriented programming, inheritance, and its use in HTML. The book then explores new APIs, such as HTML5, the Selectors API, and the File API. The last part of the book is focused on advanced topics including performance/memory optimization, best practices, and a look at Where JavaScript is going in the future. The book is broken up into 25 chapters. Chapter 1 explains the origins of JavaScript including where it came from, how it evolved, and what it is today. Chapter 2 examines how JavaScript is used in
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